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Diffstat (limited to 'host/lib/usrp/common/max287x.hpp')
| -rw-r--r-- | host/lib/usrp/common/max287x.hpp | 799 |
1 files changed, 799 insertions, 0 deletions
diff --git a/host/lib/usrp/common/max287x.hpp b/host/lib/usrp/common/max287x.hpp new file mode 100644 index 000000000..ee1dbb946 --- /dev/null +++ b/host/lib/usrp/common/max287x.hpp @@ -0,0 +1,799 @@ +// +// Copyright 2015 Ettus Research LLC +// +// This program is free software: you can redistribute it and/or modify +// it under the terms of the GNU General Public License as published by +// the Free Software Foundation, either version 3 of the License, or +// (at your option) any later version. +// +// This program is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. +// +// You should have received a copy of the GNU General Public License +// along with this program. If not, see <http://www.gnu.org/licenses/>. +// + +#ifndef MAX287X_HPP_INCLUDED +#define MAX287X_HPP_INCLUDED + +#include <uhd/exception.hpp> +#include <uhd/types/dict.hpp> +#include <uhd/types/ranges.hpp> +#include <uhd/utils/log.hpp> +#include <boost/assign.hpp> +#include <boost/function.hpp> +#include <boost/thread.hpp> +#include <vector> +#include "max2870_regs.hpp" +#include "max2871_regs.hpp" + +/** + * MAX287x interface + */ +class max287x_iface +{ +public: + typedef boost::shared_ptr<max287x_iface> sptr; + + typedef boost::function<void(std::vector<boost::uint32_t>)> write_fn; + + /** + * LD Pin Modes + */ + typedef enum{ + LD_PIN_MODE_LOW, + LD_PIN_MODE_DLD, + LD_PIN_MODE_ALD, + LD_PIN_MODE_HIGH + } ld_pin_mode_t; + + /** + * MUXOUT Modes + */ + typedef enum{ + MUXOUT_TRI_STATE, + MUXOUT_HIGH, + MUXOUT_LOW, + MUXOUT_RDIV, + MUXOUT_NDIV, + MUXOUT_ALD, + MUXOUT_DLD, + MUXOUT_SYNC, + MUXOUT_SPI + } muxout_mode_t; + + /** + * Charge Pump Currents + */ + typedef enum{ + CHARGE_PUMP_CURRENT_0_32MA, + CHARGE_PUMP_CURRENT_0_64MA, + CHARGE_PUMP_CURRENT_0_96MA, + CHARGE_PUMP_CURRENT_1_28MA, + CHARGE_PUMP_CURRENT_1_60MA, + CHARGE_PUMP_CURRENT_1_92MA, + CHARGE_PUMP_CURRENT_2_24MA, + CHARGE_PUMP_CURRENT_2_56MA, + CHARGE_PUMP_CURRENT_2_88MA, + CHARGE_PUMP_CURRENT_3_20MA, + CHARGE_PUMP_CURRENT_3_52MA, + CHARGE_PUMP_CURRENT_3_84MA, + CHARGE_PUMP_CURRENT_4_16MA, + CHARGE_PUMP_CURRENT_4_48MA, + CHARGE_PUMP_CURRENT_4_80MA, + CHARGE_PUMP_CURRENT_5_12MA + } charge_pump_current_t; + + /** + * Output Powers + */ + typedef enum{ + OUTPUT_POWER_M4DBM, + OUTPUT_POWER_M1DBM, + OUTPUT_POWER_2DBM, + OUTPUT_POWER_5DBM + } output_power_t; + + typedef enum { + LOW_NOISE_AND_SPUR_LOW_NOISE, + LOW_NOISE_AND_SPUR_LOW_SPUR_1, + LOW_NOISE_AND_SPUR_LOW_SPUR_2 + } low_noise_and_spur_t; + + typedef enum { + CLOCK_DIV_MODE_CLOCK_DIVIDER_OFF, + CLOCK_DIV_MODE_FAST_LOCK, + CLOCK_DIV_MODE_PHASE + } clock_divider_mode_t; + + /** + * Make a synthesizer + * @param write write function + * @return shared pointer to object + */ + template <typename max287X_t> static sptr make(write_fn write) + { + return sptr(new max287X_t(write)); + } + + /** + * Destructor + */ + virtual ~max287x_iface() {}; + + /** + * Power up the synthesizer + */ + virtual void power_up(void) = 0; + + /** + * Shut down the synthesizer + */ + virtual void shutdown(void) = 0; + + /** + * Check if the synthesizer is shut down + */ + virtual bool is_shutdown(void) = 0; + + /** + * Set frequency + * @param target_freq target frequency + * @param ref_freq reference frequency + * @param target_pfd_freq target phase detector frequency + * @param is_int_n enable integer-N tuning + * @return actual frequency + */ + virtual double set_frequency( + double target_freq, + double ref_freq, + double target_pfd_freq, + bool is_int_n) = 0; + + /** + * Set output power + * @param power output power + */ + virtual void set_output_power(output_power_t power) = 0; + + /** + * Set lock detect pin mode + * @param mode lock detect pin mode + */ + virtual void set_ld_pin_mode(ld_pin_mode_t mode) = 0; + + /** + * Set muxout pin mode + * @param mode muxout mode + */ + virtual void set_muxout_mode(muxout_mode_t mode) = 0; + + /** + * Set charge pump current + * @param cp_current charge pump current + */ + virtual void set_charge_pump_current(charge_pump_current_t cp_current) = 0; + + /** + * Enable or disable auto retune + * @param enabled enable auto retune + */ + virtual void set_auto_retune(bool enabled) = 0; + + /** + * Set clock divider mode + * @param mode clock divider mode + */ + virtual void set_clock_divider_mode(clock_divider_mode_t mode) = 0; + + /** + * Enable or disable cycle slip mode + * @param enabled enable cycle slip mode + */ + virtual void set_cycle_slip_mode(bool enabled) = 0; + + /** + * Set low noise and spur mode + * @param mode low noise and spur mode + */ + virtual void set_low_noise_and_spur(low_noise_and_spur_t mode) = 0; + + /** + * Set phase + * @param phase the phase offset + */ + virtual void set_phase(boost::uint16_t phase) = 0; + + /** + * Write values configured by the set_* functions. + */ + virtual void commit(void) = 0; + + /** + * Check whether this is in a state where it can be synchronized + */ + virtual bool can_sync(void) = 0; +}; + +/** + * MAX287x + * Base class for all MAX287x synthesizers + */ +template <typename max287x_regs_t> +class max287x : public max287x_iface +{ +public: + max287x(write_fn func); + virtual ~max287x(); + virtual void power_up(void); + virtual void shutdown(void); + virtual bool is_shutdown(void); + virtual double set_frequency( + double target_freq, + double ref_freq, + double target_pfd_freq, + bool is_int_n); + virtual void set_output_power(output_power_t power); + virtual void set_ld_pin_mode(ld_pin_mode_t mode); + virtual void set_muxout_mode(muxout_mode_t mode); + virtual void set_charge_pump_current(charge_pump_current_t cp_current); + virtual void set_auto_retune(bool enabled); + virtual void set_clock_divider_mode(clock_divider_mode_t mode); + virtual void set_cycle_slip_mode(bool enabled); + virtual void set_low_noise_and_spur(low_noise_and_spur_t mode); + virtual void set_phase(boost::uint16_t phase); + virtual void commit(); + virtual bool can_sync(); + +protected: + max287x_regs_t _regs; + bool _can_sync; + bool _write_all_regs; + +private: + write_fn _write; + bool _delay_after_write; +}; + +/** + * MAX2870 + */ +class max2870 : public max287x<max2870_regs_t> +{ +public: + max2870(write_fn func) : max287x(func) {} + ~max2870() {} + double set_frequency( + double target_freq, + double ref_freq, + double target_pfd_freq, + bool is_int_n) + { + _regs.cpoc = is_int_n ? max2870_regs_t::CPOC_ENABLED : max2870_regs_t::CPOC_DISABLED; + _regs.feedback_select = target_freq >= 3.0e9 ? + max2870_regs_t::FEEDBACK_SELECT_DIVIDED : + max2870_regs_t::FEEDBACK_SELECT_FUNDAMENTAL; + + return max287x::set_frequency(target_freq, ref_freq, target_pfd_freq, is_int_n); + } + void commit(void) + { + // For MAX2870, we always need to write all registers. + _write_all_regs = true; + max287x::commit(); + } +}; + +/** + * MAX2871 + */ +class max2871 : public max287x<max2871_regs_t> +{ +public: + max2871(write_fn func) : max287x(func) {} + ~max2871() {}; + void set_muxout_mode(muxout_mode_t mode) + { + switch(mode) + { + case MUXOUT_SYNC: + _regs.muxout = max2871_regs_t::MUXOUT_SYNC; + break; + case MUXOUT_SPI: + _regs.muxout = max2871_regs_t::MUXOUT_SPI; + break; + default: + max287x::set_muxout_mode(mode); + } + } + + double set_frequency( + double target_freq, + double ref_freq, + double target_pfd_freq, + bool is_int_n) + { + _regs.feedback_select = max2871_regs_t::FEEDBACK_SELECT_DIVIDED; + double freq = max287x::set_frequency(target_freq, ref_freq, target_pfd_freq, is_int_n); + + // According to Maxim support, the following factors must be true to allow for synchronization + if (_regs.r_counter_10_bit == 1 and + _regs.reference_divide_by_2 == max2871_regs_t::REFERENCE_DIVIDE_BY_2_DISABLED and + _regs.reference_doubler == max2871_regs_t::REFERENCE_DOUBLER_DISABLED and + _regs.rf_divider_select <= max2871_regs_t::RF_DIVIDER_SELECT_DIV16 and + _regs.low_noise_and_spur == max2871_regs_t::LOW_NOISE_AND_SPUR_LOW_NOISE) + { + _can_sync = true; + } + return freq; + } +}; + + +// Implementation of max287x template class +// To avoid linker errors, it was either include +// it here or put it in a .cpp file and include +// that file in this header file. Decided to just +// include it here. + +template <typename max287x_regs_t> +max287x<max287x_regs_t>::max287x(write_fn func) : + _can_sync(false), + _write_all_regs(true), + _write(func), + _delay_after_write(true) +{ + power_up(); +} + +template <typename max287x_regs_t> +max287x<max287x_regs_t>::~max287x() +{ + shutdown(); +} + +template <typename max287x_regs_t> +void max287x<max287x_regs_t>::power_up(void) +{ + _regs.power_down = max287x_regs_t::POWER_DOWN_NORMAL; + _regs.double_buffer = max287x_regs_t::DOUBLE_BUFFER_ENABLED; + + // According to MAX287x data sheets: + // "Upon power-up, the registers should be programmed twice with at + // least a 20ms pause between writes. The first write ensures that + // the device is enabled, and the second write starts the VCO + // selection process." + // The first write and the 20ms wait are done here. The second write + // is done when any other function that does a write to the registers + // is called (such as tuning). + _write_all_regs = true; + _delay_after_write = true; + commit(); + _write_all_regs = true; // Next call to commit() writes all regs +} + +template <typename max287x_regs_t> +void max287x<max287x_regs_t>::shutdown(void) +{ + _regs.rf_output_enable = max287x_regs_t::RF_OUTPUT_ENABLE_DISABLED; + _regs.aux_output_enable = max287x_regs_t::AUX_OUTPUT_ENABLE_DISABLED; + _regs.power_down = max287x_regs_t::POWER_DOWN_SHUTDOWN; + commit(); +} + +template <typename max287x_regs_t> +bool max287x<max287x_regs_t>::is_shutdown(void) +{ + return (_regs.power_down == max287x_regs_t::POWER_DOWN_SHUTDOWN); +} + +template <typename max287x_regs_t> +double max287x<max287x_regs_t>::set_frequency( + double target_freq, + double ref_freq, + double target_pfd_freq, + bool is_int_n) +{ + _can_sync = false; + + //map rf divider select output dividers to enums + static const uhd::dict<int, typename max287x_regs_t::rf_divider_select_t> rfdivsel_to_enum = + boost::assign::map_list_of + (1, max287x_regs_t::RF_DIVIDER_SELECT_DIV1) + (2, max287x_regs_t::RF_DIVIDER_SELECT_DIV2) + (4, max287x_regs_t::RF_DIVIDER_SELECT_DIV4) + (8, max287x_regs_t::RF_DIVIDER_SELECT_DIV8) + (16, max287x_regs_t::RF_DIVIDER_SELECT_DIV16) + (32, max287x_regs_t::RF_DIVIDER_SELECT_DIV32) + (64, max287x_regs_t::RF_DIVIDER_SELECT_DIV64) + (128, max287x_regs_t::RF_DIVIDER_SELECT_DIV128); + + //map mode setting to valid integer divider (N) values + static const uhd::range_t int_n_mode_div_range(16,65536,1); + static const uhd::range_t frac_n_mode_div_range(19,4091,1); + + //other ranges and constants from MAX287X datasheets + static const uhd::range_t clock_div_range(1,4095,1); + static const uhd::range_t r_range(1,1023,1); + static const double MIN_VCO_FREQ = 3e9; + static const double BS_FREQ = 50e3; + static const int MAX_BS_VALUE = 1023; + + int T = 0; + int D = ref_freq <= 10.0e6 ? 1 : 0; + int R = 0; + int BS = 0; + int N = 0; + int FRAC = 0; + int MOD = 4095; + int RFdiv = 1; + double pfd_freq = target_pfd_freq; + bool feedback_divided = (_regs.feedback_select == max287x_regs_t::FEEDBACK_SELECT_DIVIDED); + + //increase RF divider until acceptable VCO frequency (MIN freq for MAX287x VCO is 3GHz) + double vco_freq = target_freq; + while (vco_freq < MIN_VCO_FREQ) + { + vco_freq *= 2; + RFdiv *= 2; + } + + // The feedback frequency can be the fundamental VCO frequency or + // divided frequency. The output divider for MAX287x is actually + // 2 dividers, but only the first (1/2/4/8/16) is included in the + // feedback loop. + int fb_divisor = feedback_divided ? (RFdiv > 16 ? 16 : RFdiv) : 1; + + /* + * The goal here is to loop though possible R dividers, + * band select clock dividers, N (int) dividers, and FRAC + * (frac) dividers. + * + * Calculate the N and F dividers for each set of values. + * The loop exits when it meets all of the constraints. + * The resulting loop values are loaded into the registers. + * + * f_pfd = f_ref*(1+D)/(R*(1+T)) + * f_vco = (N + (FRAC/MOD))*f_pfd + * N = f_vco/f_pfd - FRAC/MOD = f_vco*((R*(T+1))/(f_ref*(1+D))) - FRAC/MOD + * f_rf = f_vco/RFdiv + */ + for(R = int(ref_freq*(1+D)/(target_pfd_freq*(1+T))); R <= r_range.stop(); R++) + { + //PFD input frequency = f_ref/R ... ignoring Reference doubler/divide-by-2 (D & T) + pfd_freq = ref_freq*(1+D)/(R*(1+T)); + + //keep the PFD frequency at or below target + if (pfd_freq > target_pfd_freq) + continue; + + //ignore fractional part of tuning + N = int((vco_freq/pfd_freq)/fb_divisor); + + //Fractional-N calculation + FRAC = int(boost::math::round(((vco_freq/pfd_freq)/fb_divisor - N)*MOD)); + + if(is_int_n) + { + if (FRAC > (MOD / 2)) //Round integer such that actual freq is closest to target + N++; + FRAC = 0; + } + + //keep N within int divider requirements + if(is_int_n) + { + if(N < int_n_mode_div_range.start()) continue; + if(N > int_n_mode_div_range.stop()) continue; + } + else + { + if(N < frac_n_mode_div_range.start()) continue; + if(N > frac_n_mode_div_range.stop()) continue; + } + + //keep pfd freq low enough to achieve 50kHz BS clock + BS = std::ceil(pfd_freq / BS_FREQ); + if(BS <= MAX_BS_VALUE) break; + } + UHD_ASSERT_THROW(R <= r_range.stop()); + + //Reference divide-by-2 for 50% duty cycle + // if R even, move one divide by 2 to to regs.reference_divide_by_2 + if(R % 2 == 0) + { + T = 1; + R /= 2; + } + + //actual frequency calculation + double actual_freq = double((N + (double(FRAC)/double(MOD)))*ref_freq*(1+int(D))/(R*(1+int(T)))) * fb_divisor / RFdiv; + + UHD_LOGV(rarely) + << boost::format("MAX287x: Intermediates: ref=%0.2f, outdiv=%f, fbdiv=%f" + ) % ref_freq % double(RFdiv*2) % double(N + double(FRAC)/double(MOD)) << std::endl + << boost::format("MAX287x: tune: R=%d, BS=%d, N=%d, FRAC=%d, MOD=%d, T=%d, D=%d, RFdiv=%d, type=%s" + ) % R % BS % N % FRAC % MOD % T % D % RFdiv % ((is_int_n) ? "Integer-N" : "Fractional") << std::endl + << boost::format("MAX287x: Frequencies (MHz): REQ=%0.2f, ACT=%0.2f, VCO=%0.2f, PFD=%0.2f, BAND=%0.2f" + ) % (target_freq/1e6) % (actual_freq/1e6) % (vco_freq/1e6) % (pfd_freq/1e6) % (pfd_freq/BS/1e6) << std::endl; + + //load the register values + _regs.rf_output_enable = max287x_regs_t::RF_OUTPUT_ENABLE_ENABLED; + + if(is_int_n) { + _regs.cpl = max287x_regs_t::CPL_DISABLED; + _regs.ldf = max287x_regs_t::LDF_INT_N; + _regs.int_n_mode = max287x_regs_t::INT_N_MODE_INT_N; + } else { + _regs.cpl = max287x_regs_t::CPL_ENABLED; + _regs.ldf = max287x_regs_t::LDF_FRAC_N; + _regs.int_n_mode = max287x_regs_t::INT_N_MODE_FRAC_N; + } + + _regs.lds = pfd_freq <= 32e6 ? max287x_regs_t::LDS_SLOW : max287x_regs_t::LDS_FAST; + + _regs.frac_12_bit = FRAC; + _regs.int_16_bit = N; + _regs.mod_12_bit = MOD; + _regs.clock_divider_12_bit = std::max(int(clock_div_range.start()), int(std::ceil(400e-6*pfd_freq/MOD))); + UHD_ASSERT_THROW(_regs.clock_divider_12_bit <= clock_div_range.stop()); + _regs.r_counter_10_bit = R; + _regs.reference_divide_by_2 = T ? + max287x_regs_t::REFERENCE_DIVIDE_BY_2_ENABLED : + max287x_regs_t::REFERENCE_DIVIDE_BY_2_DISABLED; + _regs.reference_doubler = D ? + max287x_regs_t::REFERENCE_DOUBLER_ENABLED : + max287x_regs_t::REFERENCE_DOUBLER_DISABLED; + _regs.band_select_clock_div = BS & 0xFF; + _regs.bs_msb = (BS & 0x300) >> 8; + UHD_ASSERT_THROW(rfdivsel_to_enum.has_key(RFdiv)); + _regs.rf_divider_select = rfdivsel_to_enum[RFdiv]; + + if (_regs.clock_div_mode == max287x_regs_t::CLOCK_DIV_MODE_FAST_LOCK) + { + // Charge pump current needs to be set to lowest value in fast lock mode + _regs.charge_pump_current = max287x_regs_t::CHARGE_PUMP_CURRENT_0_32MA; + // Make sure the register containing the charge pump current is written + _write_all_regs = true; + } + + return actual_freq; +} + +template <typename max287x_regs_t> +void max287x<max287x_regs_t>::set_output_power(output_power_t power) +{ + switch (power) + { + case OUTPUT_POWER_M4DBM: + _regs.output_power = max287x_regs_t::OUTPUT_POWER_M4DBM; + break; + case OUTPUT_POWER_M1DBM: + _regs.output_power = max287x_regs_t::OUTPUT_POWER_M1DBM; + break; + case OUTPUT_POWER_2DBM: + _regs.output_power = max287x_regs_t::OUTPUT_POWER_2DBM; + break; + case OUTPUT_POWER_5DBM: + _regs.output_power = max287x_regs_t::OUTPUT_POWER_5DBM; + break; + default: + UHD_THROW_INVALID_CODE_PATH(); + } +} + +template <typename max287x_regs_t> +void max287x<max287x_regs_t>::set_ld_pin_mode(ld_pin_mode_t mode) +{ + switch(mode) + { + case LD_PIN_MODE_LOW: + _regs.ld_pin_mode = max287x_regs_t::LD_PIN_MODE_LOW; + break; + case LD_PIN_MODE_DLD: + _regs.ld_pin_mode = max287x_regs_t::LD_PIN_MODE_DLD; + break; + case LD_PIN_MODE_ALD: + _regs.ld_pin_mode = max287x_regs_t::LD_PIN_MODE_ALD; + break; + case LD_PIN_MODE_HIGH: + _regs.ld_pin_mode = max287x_regs_t::LD_PIN_MODE_HIGH; + break; + default: + UHD_THROW_INVALID_CODE_PATH(); + } +} + +template <typename max287x_regs_t> +void max287x<max287x_regs_t>::set_muxout_mode(muxout_mode_t mode) +{ + switch(mode) + { + case MUXOUT_TRI_STATE: + _regs.muxout = max287x_regs_t::MUXOUT_TRI_STATE; + break; + case MUXOUT_HIGH: + _regs.muxout = max287x_regs_t::MUXOUT_HIGH; + break; + case MUXOUT_LOW: + _regs.muxout = max287x_regs_t::MUXOUT_LOW; + break; + case MUXOUT_RDIV: + _regs.muxout = max287x_regs_t::MUXOUT_RDIV; + break; + case MUXOUT_NDIV: + _regs.muxout = max287x_regs_t::MUXOUT_NDIV; + break; + case MUXOUT_ALD: + _regs.muxout = max287x_regs_t::MUXOUT_ALD; + break; + case MUXOUT_DLD: + _regs.muxout = max287x_regs_t::MUXOUT_DLD; + break; + default: + UHD_THROW_INVALID_CODE_PATH(); + } +} + +template <typename max287x_regs_t> +void max287x<max287x_regs_t>::set_charge_pump_current(charge_pump_current_t cp_current) +{ + switch(cp_current) + { + case CHARGE_PUMP_CURRENT_0_32MA: + _regs.charge_pump_current = max287x_regs_t::CHARGE_PUMP_CURRENT_0_32MA; + break; + case CHARGE_PUMP_CURRENT_0_64MA: + _regs.charge_pump_current = max287x_regs_t::CHARGE_PUMP_CURRENT_0_64MA; + break; + case CHARGE_PUMP_CURRENT_0_96MA: + _regs.charge_pump_current = max287x_regs_t::CHARGE_PUMP_CURRENT_0_96MA; + break; + case CHARGE_PUMP_CURRENT_1_28MA: + _regs.charge_pump_current = max287x_regs_t::CHARGE_PUMP_CURRENT_1_28MA; + break; + case CHARGE_PUMP_CURRENT_1_60MA: + _regs.charge_pump_current = max287x_regs_t::CHARGE_PUMP_CURRENT_1_60MA; + break; + case CHARGE_PUMP_CURRENT_1_92MA: + _regs.charge_pump_current = max287x_regs_t::CHARGE_PUMP_CURRENT_1_92MA; + break; + case CHARGE_PUMP_CURRENT_2_24MA: + _regs.charge_pump_current = max287x_regs_t::CHARGE_PUMP_CURRENT_2_24MA; + break; + case CHARGE_PUMP_CURRENT_2_56MA: + _regs.charge_pump_current = max287x_regs_t::CHARGE_PUMP_CURRENT_2_56MA; + break; + case CHARGE_PUMP_CURRENT_2_88MA: + _regs.charge_pump_current = max287x_regs_t::CHARGE_PUMP_CURRENT_2_88MA; + break; + case CHARGE_PUMP_CURRENT_3_20MA: + _regs.charge_pump_current = max287x_regs_t::CHARGE_PUMP_CURRENT_3_20MA; + break; + case CHARGE_PUMP_CURRENT_3_52MA: + _regs.charge_pump_current = max287x_regs_t::CHARGE_PUMP_CURRENT_3_52MA; + break; + case CHARGE_PUMP_CURRENT_3_84MA: + _regs.charge_pump_current = max287x_regs_t::CHARGE_PUMP_CURRENT_3_84MA; + break; + case CHARGE_PUMP_CURRENT_4_16MA: + _regs.charge_pump_current = max287x_regs_t::CHARGE_PUMP_CURRENT_4_16MA; + break; + case CHARGE_PUMP_CURRENT_4_48MA: + _regs.charge_pump_current = max287x_regs_t::CHARGE_PUMP_CURRENT_4_48MA; + break; + case CHARGE_PUMP_CURRENT_4_80MA: + _regs.charge_pump_current = max287x_regs_t::CHARGE_PUMP_CURRENT_4_80MA; + break; + case CHARGE_PUMP_CURRENT_5_12MA: + _regs.charge_pump_current = max287x_regs_t::CHARGE_PUMP_CURRENT_5_12MA; + break; + default: + UHD_THROW_INVALID_CODE_PATH(); + } +} + +template <typename max287x_regs_t> +void max287x<max287x_regs_t>::set_auto_retune(bool enabled) +{ + _regs.retune = enabled ? max287x_regs_t::RETUNE_ENABLED : max287x_regs_t::RETUNE_DISABLED; +} + +template <typename max287x_regs_t> +void max287x<max287x_regs_t>::set_clock_divider_mode(clock_divider_mode_t mode) +{ + switch(mode) + { + case CLOCK_DIV_MODE_CLOCK_DIVIDER_OFF: + _regs.clock_div_mode = max287x_regs_t::CLOCK_DIV_MODE_CLOCK_DIVIDER_OFF; + break; + case CLOCK_DIV_MODE_FAST_LOCK: + _regs.clock_div_mode = max287x_regs_t::CLOCK_DIV_MODE_FAST_LOCK; + break; + case CLOCK_DIV_MODE_PHASE: + _regs.clock_div_mode = max287x_regs_t::CLOCK_DIV_MODE_PHASE; + break; + default: + UHD_THROW_INVALID_CODE_PATH(); + } +} + +template <typename max287x_regs_t> +void max287x<max287x_regs_t>::set_cycle_slip_mode(bool enabled) +{ + if (enabled) + throw uhd::runtime_error("Cycle slip mode not supported on this MAX287x synthesizer."); +} + +template <typename max287x_regs_t> +void max287x<max287x_regs_t>::set_low_noise_and_spur(low_noise_and_spur_t mode) +{ + switch(mode) + { + case LOW_NOISE_AND_SPUR_LOW_NOISE: + _regs.low_noise_and_spur = max287x_regs_t::LOW_NOISE_AND_SPUR_LOW_NOISE; + break; + case LOW_NOISE_AND_SPUR_LOW_SPUR_1: + _regs.low_noise_and_spur = max287x_regs_t::LOW_NOISE_AND_SPUR_LOW_SPUR_1; + break; + case LOW_NOISE_AND_SPUR_LOW_SPUR_2: + _regs.low_noise_and_spur = max287x_regs_t::LOW_NOISE_AND_SPUR_LOW_SPUR_2; + break; + default: + UHD_THROW_INVALID_CODE_PATH(); + } +} + +template <typename max287x_regs_t> +void max287x<max287x_regs_t>::set_phase(boost::uint16_t phase) +{ + _regs.phase_12_bit = phase & 0xFFF; +} + +template <typename max287x_regs_t> +void max287x<max287x_regs_t>::commit() +{ + std::vector<boost::uint32_t> regs; + std::set<boost::uint32_t> changed_regs; + + // Get only regs with changes + if (_write_all_regs) + { + for (int addr = 5; addr >= 0; addr--) + regs.push_back(_regs.get_reg(boost::uint32_t(addr))); + } else { + try { + changed_regs = _regs.template get_changed_addrs<boost::uint32_t> (); + for (int addr = 5; addr >= 0; addr--) + { + if (changed_regs.find(boost::uint32_t(addr)) != changed_regs.end()) + regs.push_back(_regs.get_reg(boost::uint32_t(addr))); + } + } catch (uhd::runtime_error& e) { + // No saved state - write all regs + for (int addr = 5; addr >= 0; addr--) + regs.push_back(_regs.get_reg(boost::uint32_t(addr))); + } + } + + _write(regs); + _regs.save_state(); + _write_all_regs = false; + + if (_delay_after_write) + { + boost::this_thread::sleep(boost::posix_time::milliseconds(20)); + _delay_after_write = false; + } +} + + +template <typename max287x_regs_t> +bool max287x<max287x_regs_t>::can_sync(void) +{ + return _can_sync; +} + +#endif // MAX287X_HPP_INCLUDED |